1 /* $Cambridge: exim/src/src/globals.h,v 1.62.2.2 2009/04/09 13:57:21 tom Exp $ */
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
7 /* Copyright (c) University of Cambridge 1995 - 2007 */
8 /* See the file NOTICE for conditions of use and distribution. */
10 /* Almost all the global variables are defined together in this one header, so
11 that they are easy to find. However, those that are visible during the
12 compilation of the local_scan() function are defined separately in the
13 local_scan.h header file. */
15 /* First put any specials that are required for some operating systems. */
21 /* Now things that are present only when configured. */
24 extern uschar *opt_perl_startup; /* Startup code for Perl interpreter */
25 extern BOOL opt_perl_at_start; /* Start Perl interpreter at start */
26 extern BOOL opt_perl_started; /* Set once interpreter started */
30 extern tree_node *dlobj_anchor; /* Tree of dynamically-loaded objects */
34 extern uschar *ibase_servers;
38 extern uschar *eldap_default_servers; /* List of default servers */
39 extern int eldap_version; /* LDAP version */
43 extern uschar *mysql_servers; /* List of servers and connect info */
47 extern uschar *oracle_servers; /* List of servers and connect info */
51 extern uschar *pgsql_servers; /* List of servers and connect info */
55 extern int sqlite_lock_timeout; /* Internal lock waiting timeout */
58 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
59 extern BOOL move_frozen_messages; /* Get them out of the normal directory */
62 /* These variables are outside the #ifdef because it keeps the code less
63 cluttered in several places (e.g. during logging) if we can always refer to
64 them. Also, the tls_ variables are now always visible. */
66 extern int tls_active; /* fd/socket when in a TLS session */
67 extern BOOL tls_certificate_verified; /* Client certificate verified */
68 extern uschar *tls_cipher; /* Cipher used */
69 extern BOOL tls_on_connect; /* For older MTAs that don't STARTTLS */
70 extern uschar *tls_on_connect_ports; /* Ports always tls-on-connect */
71 extern uschar *tls_peerdn; /* DN from peer */
74 extern uschar *gnutls_require_mac; /* So some can be avoided */
75 extern uschar *gnutls_require_kx; /* So some can be avoided */
76 extern uschar *gnutls_require_proto; /* So some can be avoided */
77 extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
78 extern uschar *tls_advertise_hosts; /* host for which TLS is advertised */
79 extern uschar *tls_certificate; /* Certificate file */
80 extern uschar *tls_crl; /* CRL File */
81 extern uschar *tls_dhparam; /* DH param file */
82 extern BOOL tls_offered; /* Server offered TLS */
83 extern uschar *tls_privatekey; /* Private key file */
84 extern BOOL tls_remember_esmtp; /* For YAEB */
85 extern uschar *tls_require_ciphers; /* So some can be avoided */
86 extern uschar *tls_try_verify_hosts; /* Optional client verification */
87 extern uschar *tls_verify_certificates;/* Path for certificates to check */
88 extern uschar *tls_verify_hosts; /* Mandatory client verification */
92 /* Input-reading functions for messages, so we can use special ones for
95 extern int (*receive_getc)(void);
96 extern int (*receive_ungetc)(int);
97 extern int (*receive_feof)(void);
98 extern int (*receive_ferror)(void);
99 extern BOOL (*receive_smtp_buffered)(void);
102 /* For clearing, saving, restoring address expansion variables. We have to have
103 the size of this vector set explicitly, because it is referenced from more than
106 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
108 /* General global variables */
110 extern BOOL accept_8bitmime; /* Allow *BITMIME incoming */
111 extern header_line *acl_added_headers; /* Headers added by an ACL */
112 extern tree_node *acl_anchor; /* Tree of named ACLs */
113 extern uschar *acl_not_smtp; /* ACL run for non-SMTP messages */
114 #ifdef WITH_CONTENT_SCAN
115 extern uschar *acl_not_smtp_mime; /* For MIME parts of ditto */
117 extern uschar *acl_not_smtp_start; /* ACL run at the beginning of a non-SMTP session */
118 extern uschar *acl_smtp_auth; /* ACL run for AUTH */
119 extern uschar *acl_smtp_connect; /* ACL run on SMTP connection */
120 extern uschar *acl_smtp_data; /* ACL run after DATA received */
121 extern uschar *acl_smtp_etrn; /* ACL run for ETRN */
122 extern uschar *acl_smtp_expn; /* ACL run for EXPN */
123 extern uschar *acl_smtp_helo; /* ACL run for HELO/EHLO */
124 extern uschar *acl_smtp_mail; /* ACL run for MAIL */
125 extern uschar *acl_smtp_mailauth; /* ACL run for MAIL AUTH */
126 #ifdef WITH_CONTENT_SCAN
127 extern uschar *acl_smtp_mime; /* ACL run after DATA, before acl_smtp_data, for each MIME part */
129 extern uschar *acl_smtp_notquit; /* ACL run for disconnects */
130 extern uschar *acl_smtp_predata; /* ACL run for DATA command */
131 extern uschar *acl_smtp_quit; /* ACL run for QUIT */
132 extern uschar *acl_smtp_rcpt; /* ACL run for RCPT */
133 extern uschar *acl_smtp_starttls; /* ACL run for STARTTLS */
134 extern uschar *acl_smtp_vrfy; /* ACL run for VRFY */
135 extern BOOL acl_temp_details; /* TRUE to give details for 4xx error */
136 extern tree_node *acl_var_c; /* ACL connection variables */
137 extern tree_node *acl_var_m; /* ACL messsage variables */
138 extern uschar *acl_verify_message; /* User message for verify failure */
139 extern string_item *acl_warn_logged; /* Logged lines */
140 extern uschar *acl_wherecodes[]; /* Response codes for ACL fails */
141 extern uschar *acl_wherenames[]; /* Names for messages */
142 extern BOOL active_local_from_check;/* For adding Sender: (switchable) */
143 extern BOOL active_local_sender_retain; /* For keeping Sender: (switchable) */
144 extern address_item *addr_duplicate; /* Duplicate address list */
145 extern address_item address_defaults; /* Default data for address item */
146 extern uschar *address_file; /* Name of file when delivering to one */
147 extern uschar *address_pipe; /* Pipe command when delivering to one */
148 extern BOOL address_test_mode; /* True for -bt */
149 extern tree_node *addresslist_anchor; /* Tree of defined address lists */
150 extern int addresslist_count; /* Number defined */
151 extern gid_t *admin_groups; /* List of admin groups */
152 extern BOOL admin_user; /* True if caller can do admin */
153 extern BOOL allow_auth_unadvertised;/* As it says */
154 extern BOOL allow_domain_literals; /* As it says */
155 extern BOOL allow_mx_to_ip; /* Allow MX records to -> ip address */
156 extern BOOL allow_unqualified_recipient; /* As it says */
157 extern BOOL allow_unqualified_sender; /* Ditto */
158 extern BOOL allow_utf8_domains; /* For experimenting */
159 extern uschar *authenticated_id; /* ID that was authenticated */
160 extern uschar *authenticated_sender; /* From AUTH on MAIL */
161 extern BOOL authentication_failed; /* TRUE if AUTH was tried and failed */
162 extern uschar *auth_advertise_hosts; /* Only advertise to these */
163 extern auth_info auths_available[]; /* Vector of available auth mechanisms */
164 extern auth_instance *auths; /* Chain of instantiated auths */
165 extern auth_instance auth_defaults; /* Default values */
166 extern uschar *auth_defer_msg; /* Error message for log */
167 extern uschar *auth_defer_user_msg; /* Error message for user */
168 extern uschar *auth_vars[]; /* $authn variables */
169 extern int auto_thaw; /* Auto-thaw interval */
170 #ifdef WITH_CONTENT_SCAN
171 extern uschar *av_scanner; /* AntiVirus scanner to use for the malware condition */
174 extern BOOL background_daemon; /* Set FALSE to keep in foreground */
175 extern uschar *base62_chars; /* Table of base-62 characters */
176 extern uschar *bi_command; /* Command for -bi option */
177 extern uschar *big_buffer; /* Used for various temp things */
178 extern int big_buffer_size; /* Current size (can expand) */
179 #ifdef EXPERIMENTAL_BRIGHTMAIL
180 extern uschar *bmi_alt_location; /* expansion variable that contains the alternate location for the rcpt (available during routing) */
181 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
182 extern uschar *bmi_base64_verdict; /* expansion variable with base-64 encoded verdict string (available during routing) */
183 extern uschar *bmi_config_file; /* Brightmail config file */
184 extern int bmi_deliver; /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
185 extern int bmi_run; /* Flag that determines if message should be run through Brightmail server */
186 extern uschar *bmi_verdicts; /* BASE64-encoded verdicts with recipient lists */
188 extern uschar *bounce_message_file; /* Template file */
189 extern uschar *bounce_message_text; /* One-liner */
190 extern uschar *bounce_recipient; /* When writing an errmsg */
191 extern BOOL bounce_return_body; /* Include body in returned message */
192 extern BOOL bounce_return_message; /* Include message in bounce */
193 extern int bounce_return_size_limit; /* Max amount to return */
194 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
195 extern int bsmtp_transaction_linecount; /* Start of last transaction */
197 extern int callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
198 extern int callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
199 extern int callout_cache_positive_expire; /* Time for positive callout cache records to expire */
200 extern int callout_cache_negative_expire; /* Time for negative callout cache records to expire */
201 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
202 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
203 extern int check_log_inodes; /* Minimum for message acceptance */
204 extern int check_log_space; /* Minimum for message acceptance */
205 extern BOOL check_rfc2047_length; /* Check RFC 2047 encoded string length */
206 extern int check_spool_inodes; /* Minimum for message acceptance */
207 extern int check_spool_space; /* Minimum for message acceptance */
208 extern int clmacro_count; /* Number of command line macros */
209 extern uschar *clmacros[]; /* Copy of them, for re-exec */
210 extern int connection_max_messages;/* Max down one SMTP connection */
211 extern BOOL config_changed; /* True if -C used */
212 extern FILE *config_file; /* Configuration file */
213 extern uschar *config_filename; /* Configuration file name */
214 #ifdef CONFIGURE_GROUP
215 extern gid_t config_gid; /* Additional group owner */
217 extern int config_lineno; /* Line number */
218 extern uschar *config_main_filelist; /* List of possible config files */
219 extern uschar *config_main_filename; /* File name actually used */
220 #ifdef CONFIGURE_OWNER
221 extern uid_t config_uid; /* Additional owner */
223 extern uschar *continue_hostname; /* Host for continued delivery */
224 extern uschar *continue_host_address; /* IP address for ditto */
225 extern BOOL continue_more; /* Flag more addresses waiting */
226 extern int continue_sequence; /* Sequence num for continued delivery */
227 extern uschar *continue_transport; /* Transport for continued delivery */
229 extern uschar *csa_status; /* Client SMTP Authorization result */
231 extern BOOL daemon_listen; /* True if listening required */
232 extern uschar *daemon_smtp_port; /* Can be a list of ports */
233 extern int daemon_startup_retries; /* Number of times to retry */
234 extern int daemon_startup_sleep; /* Sleep between retries */
236 #ifdef EXPERIMENTAL_DCC
237 extern BOOL dcc_direct_add_header; /* directly add header */
238 extern uschar *dcc_header; /* dcc header */
239 extern uschar *dcc_result; /* dcc result */
240 extern uschar *dccifd_address; /* address of the dccifd daemon */
241 extern uschar *dccifd_options; /* options for the dccifd daemon */
244 extern BOOL debug_daemon; /* Debug the daemon process only */
245 extern int debug_fd; /* The fd for debug_file */
246 extern FILE *debug_file; /* Where to write debugging info */
247 extern bit_table debug_options[]; /* Table of debug options */
248 extern int debug_options_count; /* Size of table */
249 extern int delay_warning[]; /* Times between warnings */
250 extern uschar *delay_warning_condition; /* Condition string for warnings */
251 extern BOOL delivery_date_remove; /* Remove delivery-date headers */
253 extern uschar *deliver_address_data; /* Arbitrary data for an address */
254 extern int deliver_datafile; /* FD for data part of message */
255 extern uschar *deliver_domain; /* The local domain for delivery */
256 extern uschar *deliver_domain_data; /* From domain lookup */
257 extern uschar *deliver_domain_orig; /* The original local domain for delivery */
258 extern uschar *deliver_domain_parent; /* The parent domain for delivery */
259 extern BOOL deliver_drop_privilege; /* TRUE for unprivileged delivery */
260 extern BOOL deliver_firsttime; /* True for first delivery attempt */
261 extern BOOL deliver_force; /* TRUE if delivery was forced */
262 extern BOOL deliver_freeze; /* TRUE if delivery is frozen */
263 extern int deliver_frozen_at; /* Time of freezing */
264 extern uschar *deliver_home; /* Home directory for pipes */
265 extern uschar *deliver_host; /* (First) host for routed local deliveries */
266 /* Remote host for filter */
267 extern uschar *deliver_host_address; /* Address for remote delivery filter */
268 extern uschar *deliver_in_buffer; /* Buffer for copying file */
269 extern ino_t deliver_inode; /* Inode for appendfile */
270 extern uschar *deliver_localpart; /* The local part for delivery */
271 extern uschar *deliver_localpart_data; /* From local part lookup */
272 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
273 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
274 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
275 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
276 extern BOOL deliver_force_thaw; /* TRUE to force thaw in queue run */
277 extern BOOL deliver_manual_thaw; /* TRUE if manually thawed */
278 extern uschar *deliver_out_buffer; /* Buffer for copying file */
279 extern int deliver_queue_load_max; /* Different value for queue running */
280 extern address_item *deliver_recipients; /* Current set of addresses */
281 extern uschar *deliver_selectstring; /* For selecting by recipient */
282 extern BOOL deliver_selectstring_regex; /* String is regex */
283 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
284 extern BOOL deliver_selectstring_sender_regex; /* String is regex */
285 #ifdef WITH_OLD_DEMIME
286 extern int demime_errorlevel; /* Severity of MIME error */
287 extern int demime_ok; /* Nonzero if message has been demimed */
288 extern uschar *demime_reason; /* Reason for broken MIME container */
290 extern BOOL disable_callout_flush; /* Don't flush before callouts */
291 extern BOOL disable_delay_flush; /* Don't flush before "delay" in ACL */
292 #ifdef ENABLE_DISABLE_FSYNC
293 extern BOOL disable_fsync; /* Not for normal use */
295 extern BOOL disable_ipv6; /* Don't do any IPv6 things */
296 extern BOOL disable_logging; /* Disables log writing when TRUE */
299 extern uschar *dkim_signing_domain; /* Domain used for signing a message. */
300 extern uschar *dkim_signing_selector; /* Selector used for signing a message. */
301 extern int dkim_do_verify; /* DKIM verification switch. Set with ACL control statement. */
302 extern int dkim_collect_input; /* Set during message reception, when SMTP input is to be fed to the validator. */
305 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
306 extern int dns_csa_search_limit; /* How deep to search for CSA SRV records */
307 extern BOOL dns_csa_use_reverse; /* Check CSA in reverse DNS? (non-standard) */
308 extern uschar *dns_ipv4_lookup; /* For these domains, don't look for AAAA (or A6) */
309 extern int dns_retrans; /* Retransmission time setting */
310 extern int dns_retry; /* Number of retries */
311 extern uschar *dnslist_domain; /* DNS (black) list domain */
312 extern uschar *dnslist_matched; /* DNS (black) list matched key */
313 extern uschar *dnslist_text; /* DNS (black) list text message */
314 extern uschar *dnslist_value; /* DNS (black) list IP address */
315 extern tree_node *domainlist_anchor; /* Tree of defined domain lists */
316 extern int domainlist_count; /* Number defined */
317 extern BOOL dont_deliver; /* TRUE for -N option */
318 extern BOOL dot_ends; /* TRUE if "." ends non-SMTP input */
320 /* This option is now a no-opt, retained for compatibility */
321 extern BOOL drop_cr; /* For broken local MUAs */
323 extern uschar *dsn_from; /* From: string for DSNs */
325 extern BOOL enable_dollar_recipients; /* Make $recipients available */
326 extern int envelope_to_remove; /* Remove envelope_to_headers */
327 extern int errno_quota; /* Quota errno in this OS */
328 extern int error_handling; /* Error handling style */
329 extern uschar *errors_copy; /* For taking copies of errors */
330 extern uschar *errors_reply_to; /* Reply-to for error messages */
331 extern int errors_sender_rc; /* Return after message to sender*/
332 extern gid_t exim_gid; /* To be used with exim_uid */
333 extern BOOL exim_gid_set; /* TRUE if exim_gid set */
334 extern uschar *exim_path; /* Path to exec exim */
335 extern uid_t exim_uid; /* Non-root uid for exim */
336 extern BOOL exim_uid_set; /* TRUE if exim_uid set */
337 extern int expand_forbid; /* RDO flags for forbidding things */
338 extern int expand_nlength[]; /* Lengths of numbered strings */
339 extern int expand_nmax; /* Max numerical value */
340 extern uschar *expand_nstring[]; /* Numbered strings */
341 extern BOOL expand_string_forcedfail; /* TRUE if failure was "expected" */
342 extern BOOL extract_addresses_remove_arguments; /* Controls -t behaviour */
343 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
345 extern int fake_response; /* Fake FAIL or DEFER response to data */
346 extern uschar *fake_response_text; /* User defined message for the above. Default is in globals.c. */
347 extern int filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
348 extern BOOL filter_running; /* TRUE while running a filter */
349 extern int filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
350 extern int filter_test; /* Filter test type */
351 extern uschar *filter_test_sfile; /* System filter test file */
352 extern uschar *filter_test_ufile; /* User filter test file */
353 extern uschar *filter_thisaddress; /* For address looping */
354 extern int finduser_retries; /* Retry count for getpwnam() */
355 extern uid_t fixed_never_users[]; /* Can't be overridden */
356 #ifdef WITH_OLD_DEMIME
357 extern uschar *found_extension; /* demime acl condition: file extension found */
359 extern uschar *freeze_tell; /* Message on (some) freezings */
360 extern uschar *freeze_tell_config; /* The configured setting */
361 extern uschar *fudged_queue_times; /* For use in test harness */
363 extern uschar *gecos_name; /* To be expanded when pattern matches */
364 extern uschar *gecos_pattern; /* Pattern to match */
365 extern rewrite_rule *global_rewrite_rules; /* Chain of rewriting rules */
367 extern int header_insert_maxlen; /* Max for inserting headers */
368 extern int header_maxsize; /* Max total length for header */
369 extern int header_line_maxsize; /* Max for an individual line */
370 extern header_name header_names[]; /* Table of header names */
371 extern int header_names_size; /* Number of entries */
372 extern BOOL header_rewritten; /* TRUE if header changed by router */
373 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
374 extern uschar *helo_allow_chars; /* Rogue chars to allow in HELO/EHLO */
375 extern uschar *helo_lookup_domains; /* If these given, lookup host name */
376 extern uschar *helo_try_verify_hosts; /* Soft check HELO argument for these */
377 extern BOOL helo_verified; /* True if HELO verified */
378 extern BOOL helo_verify_failed; /* True if attempt failed */
379 extern uschar *helo_verify_hosts; /* Hard check HELO argument for these */
380 extern uschar *hex_digits; /* Used in several places */
381 extern uschar *hold_domains; /* Hold up deliveries to these */
382 extern BOOL host_find_failed_syntax;/* DNS syntax check failure */
383 extern BOOL host_checking_callout; /* TRUE if real callout wanted */
384 extern uschar *host_data; /* Obtained from lookup in ACL */
385 extern uschar *host_lookup; /* For which IP addresses are always looked up */
386 extern BOOL host_lookup_deferred; /* TRUE if lookup deferred */
387 extern BOOL host_lookup_failed; /* TRUE if lookup failed */
388 extern uschar *host_lookup_order; /* Order of host lookup types */
389 extern uschar *host_lookup_msg; /* Text for why it failed */
390 extern int host_number; /* For sharing spools */
391 extern uschar *host_number_string; /* For expanding */
392 extern uschar *host_reject_connection; /* Reject these hosts */
393 extern tree_node *hostlist_anchor; /* Tree of defined host lists */
394 extern int hostlist_count; /* Number defined */
395 extern uschar *hosts_connection_nolog; /* Limits the logging option */
396 extern uschar *hosts_treat_as_local; /* For routing */
398 extern int ignore_bounce_errors_after; /* Keep them for this time. */
399 extern BOOL ignore_fromline_local; /* Local SMTP ignore fromline */
400 extern uschar *ignore_fromline_hosts; /* Hosts permitted to send "From " */
401 extern BOOL is_inetd; /* True for inetd calls */
402 extern uschar *iterate_item; /* Item from iterate list */
404 extern int journal_fd; /* Fd for journal file */
406 extern int keep_malformed; /* Time to keep malformed messages */
408 extern uschar *eldap_dn; /* Where LDAP DNs are left */
409 extern int load_average; /* Most recently read load average */
410 extern BOOL local_error_message; /* True if handling one of these */
411 extern BOOL local_from_check; /* For adding Sender: (global value) */
412 extern uschar *local_from_prefix; /* Permitted prefixes */
413 extern uschar *local_from_suffix; /* Permitted suffixes */
414 extern uschar *local_interfaces; /* For forcing specific interfaces */
415 extern uschar *local_scan_data; /* Text returned by local_scan() */
416 extern optionlist local_scan_options[];/* Option list for local_scan() */
417 extern int local_scan_options_count; /* Size of the list */
418 extern int local_scan_timeout; /* Timeout for local_scan() */
419 extern BOOL local_sender_retain; /* Retain Sender: (with no From: check) */
420 extern gid_t local_user_gid; /* As it says; may be set in routers */
421 extern uid_t local_user_uid; /* As it says; may be set in routers */
422 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
423 extern int localpartlist_count; /* Number defined */
424 extern uschar *log_buffer; /* For constructing log entries */
425 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
426 extern uschar *log_file_path; /* If unset, use default */
427 extern bit_table log_options[]; /* Table of options */
428 extern int log_options_count; /* Size of table */
429 extern int log_reject_target; /* Target log for ACL rejections */
430 extern uschar *log_selector_string; /* As supplied in the config */
431 extern FILE *log_stderr; /* Copy of stderr for log use, or NULL */
432 extern BOOL log_testing_mode; /* TRUE in various testing modes */
433 extern BOOL log_timezone; /* TRUE to include the timezone in log lines */
434 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
435 extern uschar *login_sender_address; /* The actual sender address */
436 extern lookup_info lookup_list[]; /* Vector of available lookups */
437 extern int lookup_list_count; /* Number of entries in the list */
438 extern int lookup_open_max; /* Max lookup files to cache */
439 extern uschar *lookup_value; /* Value looked up from file */
441 extern macro_item *macros; /* Configuration macros */
442 extern uschar *mailstore_basename; /* For mailstore deliveries */
443 #ifdef WITH_CONTENT_SCAN
444 extern uschar *malware_name; /* Name of virus or malware ("W32/Klez-H") */
446 extern int max_received_linelength;/* What it says */
447 extern int max_username_length; /* For systems with broken getpwnam() */
448 extern int message_age; /* In seconds */
449 extern uschar *message_body; /* Start of message body for filter */
450 extern uschar *message_body_end; /* End of message body for filter */
451 extern BOOL message_body_newlines; /* FALSE => remove newlines */
452 extern int message_body_size; /* Sic */
453 extern int message_body_visible; /* Amount visible in message_body */
454 extern int message_ended; /* State of message reading and how ended */
455 extern uschar *message_headers; /* When built */
456 extern uschar message_id_option[]; /* -E<message-id> for use as option */
457 extern uschar *message_id_external; /* External form of following */
458 extern uschar *message_id_domain; /* Expanded to form domain-part of message_id */
459 extern uschar *message_id_text; /* Expanded to form message_id */
460 extern struct timeval message_id_tv; /* Time used to create last message_id */
461 extern int message_linecount; /* As it says */
462 extern BOOL message_logs; /* TRUE to write message logs */
463 extern int message_size; /* Size of message */
464 extern uschar *message_size_limit; /* As it says */
465 extern uschar message_subdir[]; /* Subdirectory for messages */
466 extern uschar *message_reference; /* Reference for error messages */
468 /* MIME ACL expandables */
469 #ifdef WITH_CONTENT_SCAN
470 extern int mime_anomaly_level;
471 extern uschar *mime_anomaly_text;
472 extern uschar *mime_boundary;
473 extern uschar *mime_charset;
474 extern uschar *mime_content_description;
475 extern uschar *mime_content_disposition;
476 extern uschar *mime_content_id;
477 extern unsigned int mime_content_size;
478 extern uschar *mime_content_transfer_encoding;
479 extern uschar *mime_content_type;
480 extern uschar *mime_decoded_filename;
481 extern uschar *mime_filename;
482 extern int mime_is_multipart;
483 extern int mime_is_coverletter;
484 extern int mime_is_rfc822;
485 extern int mime_part_count;
488 extern BOOL mua_wrapper; /* TRUE when Exim is wrapping an MUA */
490 extern uid_t *never_users; /* List of uids never to be used */
491 #ifdef WITH_CONTENT_SCAN
492 extern BOOL no_mbox_unspool; /* don't unlink files in /scan directory */
494 extern BOOL no_multiline_responses; /* For broken clients */
496 extern optionlist optionlist_auths[]; /* These option lists are made */
497 extern int optionlist_auths_size; /* global so that readconf can */
498 extern optionlist optionlist_routers[]; /* see them for printing out */
499 extern int optionlist_routers_size; /* the options. */
500 extern optionlist optionlist_transports[];
501 extern int optionlist_transports_size;
503 extern uid_t original_euid; /* Original effective uid */
504 extern gid_t originator_gid; /* Gid of whoever wrote spool file */
505 extern uschar *originator_login; /* Login of same */
506 extern uschar *originator_name; /* Full name of same */
507 extern uid_t originator_uid; /* Uid of ditto */
508 extern uschar *override_local_interfaces; /* Value of -oX argument */
509 extern uschar *override_pid_file_path; /* Value of -oP argument */
511 extern BOOL parse_allow_group; /* Allow group syntax */
512 extern BOOL parse_found_group; /* In the middle of a group */
513 extern uschar *percent_hack_domains; /* Local domains for which '% operates */
514 extern uschar *pid_file_path; /* For writing daemon pids */
515 extern uschar *pipelining_advertise_hosts; /* As it says */
516 extern BOOL pipelining_enable; /* As it says */
517 extern BOOL preserve_message_logs; /* Save msglog files */
518 extern uschar *primary_hostname; /* Primary name of this computer */
519 extern BOOL print_topbitchars; /* Topbit chars are printing chars */
520 extern uschar process_info[]; /* For SIGUSR1 output */
521 extern uschar *process_log_path; /* Alternate path */
522 extern BOOL prod_requires_admin; /* TRUE if prodding requires admin */
523 extern uschar *prvscheck_address; /* Set during prvscheck expansion item */
524 extern uschar *prvscheck_keynum; /* Set during prvscheck expansion item */
525 extern uschar *prvscheck_result; /* Set during prvscheck expansion item */
527 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
528 extern uschar *qualify_domain_sender; /* Domain to qualify senders with */
529 extern BOOL queue_2stage; /* Run queue in 2-stage manner */
530 extern uschar *queue_domains; /* Queue these domains */
531 extern BOOL queue_list_requires_admin; /* TRUE if -bp requires admin */
532 extern BOOL queue_run_first_delivery; /* If TRUE, first deliveries only */
533 extern BOOL queue_run_force; /* TRUE to force during queue run */
534 extern BOOL queue_run_local; /* Local deliveries only in queue run */
535 extern BOOL queue_running; /* TRUE for queue running process and */
536 /* immediate children */
537 extern pid_t queue_run_pid; /* PID of the queue running process or 0 */
538 extern int queue_run_pipe; /* Pipe for synchronizing */
539 extern int queue_interval; /* Queue running interval */
540 extern BOOL queue_only; /* TRUE to disable immediate delivery */
541 extern int queue_only_load; /* Max load before auto-queue */
542 extern BOOL queue_only_load_latch; /* Latch queue_only_load TRUE */
543 extern uschar *queue_only_file; /* Queue if file exists/not-exists */
544 extern BOOL queue_only_override; /* Allow override from command line */
545 extern BOOL queue_only_policy; /* ACL or local_scan wants queue_only */
546 extern BOOL queue_run_in_order; /* As opposed to random */
547 extern int queue_run_max; /* Max queue runners */
548 extern BOOL queue_smtp; /* Disable all immediate STMP (-odqs)*/
549 extern uschar *queue_smtp_domains; /* Ditto, for these domains */
551 extern unsigned int random_seed; /* Seed for random numbers */
552 extern tree_node *ratelimiters_cmd; /* Results of command ratelimit checks */
553 extern tree_node *ratelimiters_conn; /* Results of connection ratelimit checks */
554 extern tree_node *ratelimiters_mail; /* Results of per-mail ratelimit checks */
555 extern uschar *raw_active_hostname; /* Pre-expansion */
556 extern uschar *raw_sender; /* Before rewriting */
557 extern uschar **raw_recipients; /* Before rewriting */
558 extern int raw_recipients_count;
559 extern int rcpt_count; /* Count of RCPT commands in a message */
560 extern int rcpt_fail_count; /* Those that got 5xx */
561 extern int rcpt_defer_count; /* Those that got 4xx */
562 extern gid_t real_gid; /* Real gid */
563 extern uid_t real_uid; /* Real user running program */
564 extern BOOL really_exim; /* FALSE in utilities */
565 extern BOOL receive_call_bombout; /* Flag for crashing log */
566 extern int receive_linecount; /* Mainly for BSMTP errors */
567 extern int receive_messagecount; /* Mainly for BSMTP errors */
568 extern int receive_timeout; /* For non-SMTP acceptance */
569 extern int received_count; /* Count of Received: headers */
570 extern uschar *received_for; /* For "for" field */
571 extern uschar *received_header_text; /* Definition of Received: header */
572 extern int received_headers_max; /* Max count of Received: headers */
573 extern int received_time; /* Time the message was received */
574 extern uschar *recipient_data; /* lookup data for recipients */
575 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
576 extern uschar *recipient_verify_failure; /* What went wrong */
577 extern BOOL recipients_discarded; /* By an ACL */
578 extern int recipients_list_max; /* Maximum number fitting in list */
579 extern int recipients_max; /* Max permitted */
580 extern int recipients_max_reject; /* If TRUE, reject whole message */
581 extern const pcre *regex_AUTH; /* For recognizing AUTH settings */
582 extern const pcre *regex_check_dns_names; /* For DNS name checking */
583 extern const pcre *regex_From; /* For recognizing "From_" lines */
584 extern const pcre *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
585 extern const pcre *regex_PIPELINING; /* For recognizing PIPELINING */
586 extern const pcre *regex_SIZE; /* For recognizing SIZE settings */
587 extern const pcre *regex_smtp_code; /* For recognizing SMTP codes */
588 extern const pcre *regex_ismsgid; /* Compiled r.e. for message it */
589 #ifdef WITH_CONTENT_SCAN
590 extern uschar *regex_match_string; /* regex that matched a line (regex ACL condition) */
592 extern int remote_delivery_count; /* Number of remote addresses */
593 extern int remote_max_parallel; /* Maximum parallel delivery */
594 extern uschar *remote_sort_domains; /* Remote domain sorting order */
595 extern retry_config *retries; /* Chain of retry config information */
596 extern int retry_data_expire; /* When to expire retry data */
597 extern int retry_interval_max; /* Absolute maximum */
598 extern int retry_maximum_timeout; /* The maximum timeout */
599 extern uschar *return_path; /* Return path for a message */
600 extern BOOL return_path_remove; /* Remove return-path headers */
601 extern int rewrite_existflags; /* Indicate which headers have rewrites */
602 extern uschar *rfc1413_hosts; /* RFC hosts */
603 extern int rfc1413_query_timeout; /* Timeout on RFC 1413 calls */
604 /* extern BOOL rfc821_domains; */ /* If set, syntax is 821, not 822 => being abolished */
605 extern uid_t root_uid; /* The uid for root */
606 extern router_info routers_available[];/* Vector of available routers */
607 extern router_instance *routers; /* Chain of instantiated routers */
608 extern router_instance router_defaults;/* Default values */
609 extern BOOL running_in_test_harness; /*TRUE when running_status is patched */
610 extern ip_address_item *running_interfaces; /* Host's running interfaces */
611 extern uschar *running_status; /* Flag string for testing */
612 extern int runrc; /* rc from ${run} */
614 extern uschar *search_error_message; /* Details of lookup problem */
615 extern BOOL search_find_defer; /* Set TRUE if lookup deferred */
616 extern uschar *self_hostname; /* Self host after routing->directors */
617 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
618 extern uschar *sender_address_data; /* address_data from sender verify */
619 extern BOOL sender_address_forced; /* Set by -f */
620 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
621 extern uschar *sender_data; /* lookup result for senders */
622 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
623 extern uschar *sender_fullhost; /* Sender host name + address */
624 extern uschar *sender_helo_name; /* Host name from HELO/EHLO */
625 extern uschar **sender_host_aliases; /* Points to list of alias names */
626 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
627 extern BOOL sender_host_notsocket; /* Set for -bs and -bS */
628 extern BOOL sender_host_unknown; /* TRUE for -bs and -bS except inetd */
629 extern uschar *sender_ident; /* Sender identity via RFC 1413 */
630 extern BOOL sender_local; /* TRUE for local senders */
631 extern BOOL sender_name_forced; /* Set by -F */
632 extern uschar *sender_rate; /* Sender rate computed by ACL */
633 extern uschar *sender_rate_limit; /* Configured rate limit */
634 extern uschar *sender_rate_period; /* Configured smoothing period */
635 extern uschar *sender_rcvhost; /* Host data for Received: */
636 extern BOOL sender_set_untrusted; /* Sender set by untrusted caller */
637 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
638 extern uschar *sender_verify_failure; /* What went wrong */
639 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
640 extern address_item *sender_verified_failed; /* The one that caused denial */
641 extern uschar *sending_ip_address; /* Address of outgoing (SMTP) interface */
642 extern int sending_port; /* Port of outgoing interface */
643 extern volatile BOOL sigalrm_seen; /* Flag for sigalrm_handler */
644 extern uschar **sighup_argv; /* Args for re-execing after SIGHUP */
645 extern int smtp_accept_count; /* Count of connections */
646 extern BOOL smtp_accept_keepalive; /* Set keepalive on incoming */
647 extern int smtp_accept_max; /* Max SMTP connections */
648 extern int smtp_accept_max_nonmail;/* Max non-mail commands in one con */
649 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
650 extern int smtp_accept_max_per_connection; /* Max msgs per connection */
651 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
652 extern int smtp_accept_queue; /* Queue after so many connections */
653 extern int smtp_accept_queue_per_connection; /* Queue after so many msgs */
654 extern int smtp_accept_reserve; /* Reserve these SMTP connections */
655 extern uschar *smtp_active_hostname; /* Hostname for this message */
656 extern BOOL smtp_authenticated; /* Sending client has authenticated */
657 extern uschar *smtp_banner; /* Banner string (to be expanded) */
658 extern BOOL smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
659 extern int smtp_ch_index; /* Index in smtp_connection_had */
660 extern uschar *smtp_cmd_argument; /* For all SMTP commands */
661 extern uschar *smtp_cmd_buffer; /* SMTP command buffer */
662 extern time_t smtp_connection_start; /* Start time of SMTP connection */
663 extern uschar smtp_connection_had[]; /* Recent SMTP commands */
664 extern int smtp_connect_backlog; /* Max backlog permitted */
665 extern double smtp_delay_mail; /* Current MAIL delay */
666 extern double smtp_delay_rcpt; /* Current RCPT delay */
667 extern BOOL smtp_enforce_sync; /* Enforce sync rules */
668 extern uschar *smtp_etrn_command; /* Command to run */
669 extern BOOL smtp_etrn_serialize; /* Only one at once */
670 extern FILE *smtp_in; /* Incoming SMTP input file */
671 extern int smtp_load_reserve; /* Only from reserved if load > this */
672 extern int smtp_mailcmd_count; /* Count of MAIL commands */
673 extern int smtp_max_synprot_errors;/* Max syntax/protocol errors */
674 extern int smtp_max_unknown_commands; /* As it says */
675 extern uschar *smtp_notquit_reason; /* Global for disconnect reason */
676 extern FILE *smtp_out; /* Incoming SMTP output file */
677 extern uschar *smtp_ratelimit_hosts; /* Rate limit these hosts */
678 extern uschar *smtp_ratelimit_mail; /* Parameters for MAIL limiting */
679 extern uschar *smtp_ratelimit_rcpt; /* Parameters for RCPT limiting */
680 extern uschar *smtp_read_error; /* Message for SMTP input error */
681 extern int smtp_receive_timeout; /* Applies to each received line */
682 extern uschar *smtp_reserve_hosts; /* Hosts for reserved slots */
683 extern BOOL smtp_return_error_details; /* TRUE to return full info */
684 extern int smtp_rlm_base; /* Base interval for MAIL rate limit */
685 extern double smtp_rlm_factor; /* Factor for MAIL rate limit */
686 extern int smtp_rlm_limit; /* Max delay */
687 extern int smtp_rlm_threshold; /* Threshold for RCPT rate limit */
688 extern int smtp_rlr_base; /* Base interval for RCPT rate limit */
689 extern double smtp_rlr_factor; /* Factor for RCPT rate limit */
690 extern int smtp_rlr_limit; /* Max delay */
691 extern int smtp_rlr_threshold; /* Threshold for RCPT rate limit */
692 extern BOOL smtp_use_pipelining; /* Global for passed connections */
693 extern BOOL smtp_use_size; /* Global for passed connections */
695 #ifdef WITH_CONTENT_SCAN
696 extern uschar *spamd_address; /* address for the spamassassin daemon */
697 extern uschar *spam_bar; /* the spam "bar" (textual representation of spam_score) */
698 extern uschar *spam_report; /* the spamd report (multiline) */
699 extern uschar *spam_score; /* the spam score (float) */
700 extern uschar *spam_score_int; /* spam_score * 10 (int) */
702 #ifdef EXPERIMENTAL_SPF
703 extern uschar *spf_guess; /* spf best-guess record */
704 extern uschar *spf_header_comment; /* spf header comment */
705 extern uschar *spf_received; /* Received-SPF: header */
706 extern uschar *spf_result; /* spf result in string form */
707 extern uschar *spf_smtp_comment; /* spf comment to include in SMTP reply */
709 extern BOOL split_spool_directory; /* TRUE to use multiple subdirs */
710 extern uschar *spool_directory; /* Name of spool directory */
711 #ifdef EXPERIMENTAL_SRS
712 extern uschar *srs_config; /* SRS config secret:max age:hash length:use timestamp:use hash */
713 extern uschar *srs_db_address; /* SRS db address */
714 extern uschar *srs_db_key; /* SRS db key */
715 extern int srs_hashlength; /* SRS hash length */
716 extern int srs_hashmin; /* SRS minimum hash length */
717 extern int srs_maxage; /* SRS max age */
718 extern uschar *srs_orig_sender; /* SRS original sender */
719 extern uschar *srs_orig_recipient; /* SRS original recipient */
720 extern uschar *srs_recipient; /* SRS recipient */
721 extern uschar *srs_secrets; /* SRS secrets list */
722 extern uschar *srs_status; /* SRS staus */
723 extern BOOL srs_usehash; /* SRS use hash flag */
724 extern BOOL srs_usetimestamp; /* SRS use timestamp flag */
726 extern BOOL strict_acl_vars; /* ACL variables have to be set before being used */
727 extern int string_datestamp_offset;/* After insertion by string_format */
728 extern BOOL strip_excess_angle_brackets; /* Surrounding route-addrs */
729 extern BOOL strip_trailing_dot; /* Remove dots at ends of domains */
730 extern uschar *submission_domain; /* Domain for submission mode */
731 extern BOOL submission_mode; /* Can be forced from ACL */
732 extern uschar *submission_name; /* User name set from ACL */
733 extern BOOL suppress_local_fixups; /* Can be forced from ACL */
734 extern BOOL synchronous_delivery; /* TRUE if -odi is set */
735 extern BOOL syslog_duplication; /* FALSE => no duplicate logging */
736 extern int syslog_facility; /* As defined by Syslog.h */
737 extern uschar *syslog_processname; /* 'ident' param to openlog() */
738 extern BOOL syslog_timestamp; /* TRUE if time on syslogs */
739 extern uschar *system_filter; /* Name of system filter file */
741 extern uschar *system_filter_directory_transport; /* Transports for the */
742 extern uschar *system_filter_file_transport; /* system filter */
743 extern uschar *system_filter_pipe_transport;
744 extern uschar *system_filter_reply_transport;
746 extern gid_t system_filter_gid; /* Gid for running system filter */
747 extern BOOL system_filter_gid_set; /* TRUE if gid set */
748 extern uid_t system_filter_uid; /* Uid for running system filter */
749 extern BOOL system_filter_uid_set; /* TRUE if uid set */
750 extern BOOL system_filtering; /* TRUE when running system filter */
752 extern BOOL tcp_nodelay; /* Controls TCP_NODELAY on daemon */
753 extern int test_harness_load_avg; /* For use when testing */
754 extern int thismessage_size_limit; /* Limit for this message */
755 extern int timeout_frozen_after; /* Max time to keep frozen messages */
756 extern BOOL timestamps_utc; /* Use UTC for all times */
757 extern int transport_count; /* Count of bytes transported */
758 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
759 extern int transport_filter_timeout; /* Timeout for same */
760 extern BOOL transport_filter_timed_out; /* True if it did */
762 extern transport_info transports_available[]; /* Vector of available transports */
763 extern transport_instance *transports; /* Chain of instantiated transports */
764 extern transport_instance transport_defaults; /* Default values */
766 extern int transport_write_timeout;/* Set to time out individual writes */
768 extern tree_node *tree_dns_fails; /* Tree of DNS lookup failures */
769 extern tree_node *tree_duplicates; /* Tree of duplicate addresses */
770 extern tree_node *tree_nonrecipients; /* Tree of nonrecipient addresses */
771 extern tree_node *tree_unusable; /* Tree of unusable addresses */
773 extern BOOL trusted_caller; /* Caller is trusted */
774 extern gid_t *trusted_groups; /* List of trusted groups */
775 extern uid_t *trusted_users; /* List of trusted users */
776 extern uschar *timezone_string; /* Required timezone setting */
778 extern uschar *unknown_login; /* To use when login id unknown */
779 extern uschar *unknown_username; /* Ditto */
780 extern uschar *untrusted_set_sender; /* Let untrusted users set these senders */
781 extern uschar *uucp_from_pattern; /* For recognizing "From " lines */
782 extern uschar *uucp_from_sender; /* For building the sender */
784 extern uschar *warn_message_file; /* Template for warning messages */
785 extern uschar *warnmsg_delay; /* String form of delay time */
786 extern uschar *warnmsg_recipients; /* Recipients of warning message */
787 extern BOOL write_rejectlog; /* Control of reject logging */
789 extern uschar *version_copyright; /* Copyright notice */
790 extern uschar *version_date; /* Date of compilation */
791 extern uschar *version_cnumber; /* Compile number */
792 extern uschar *version_string; /* Version string */
794 extern int warning_count; /* Delay warnings sent for this msg */
796 /* End of globals.h */
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